* [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid().
@ 2022-11-27 1:24 Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 1/2] af_unix: Get user_ns from in_skb in unix_diag_get_exact() Kuniyuki Iwashima
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Kuniyuki Iwashima @ 2022-11-27 1:24 UTC (permalink / raw)
To: David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: Felipe Gasper, Wei Chen, Kuniyuki Iwashima, Kuniyuki Iwashima, netdev
The first patch fixes a NULL deref when we dump a AF_UNIX socket's UID,
and the second patch adds a repro/test for such a case.
Changes:
v2:
* Get user_ns from NETLINK_CB(in_skb).sk.
* Add test.
v1: https://lore.kernel.org/netdev/20221122205811.20910-1-kuniyu@amazon.com/
Kuniyuki Iwashima (2):
af_unix: Get user_ns from in_skb in unix_diag_get_exact().
af_unix: Add test for sock_diag and UDIAG_SHOW_UID.
net/unix/diag.c | 20 +-
tools/testing/selftests/net/.gitignore | 1 +
tools/testing/selftests/net/af_unix/Makefile | 2 +-
.../testing/selftests/net/af_unix/diag_uid.c | 178 ++++++++++++++++++
4 files changed, 192 insertions(+), 9 deletions(-)
create mode 100644 tools/testing/selftests/net/af_unix/diag_uid.c
--
2.30.2
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2 net 1/2] af_unix: Get user_ns from in_skb in unix_diag_get_exact().
2022-11-27 1:24 [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() Kuniyuki Iwashima
@ 2022-11-27 1:24 ` Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 2/2] af_unix: Add test for sock_diag and UDIAG_SHOW_UID Kuniyuki Iwashima
2022-12-01 9:50 ` [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Kuniyuki Iwashima @ 2022-11-27 1:24 UTC (permalink / raw)
To: David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: Felipe Gasper, Wei Chen, Kuniyuki Iwashima, Kuniyuki Iwashima,
netdev, syzbot
Wei Chen reported a NULL deref in sk_user_ns() [0][1], and Paolo diagnosed
the root cause: in unix_diag_get_exact(), the newly allocated skb does not
have sk. [2]
We must get the user_ns from the NETLINK_CB(in_skb).sk and pass it to
sk_diag_fill().
[0]:
BUG: kernel NULL pointer dereference, address: 0000000000000270
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 12bbce067 P4D 12bbce067 PUD 12bc40067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 27942 Comm: syz-executor.0 Not tainted 6.1.0-rc5-next-20221118 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014
RIP: 0010:sk_user_ns include/net/sock.h:920 [inline]
RIP: 0010:sk_diag_dump_uid net/unix/diag.c:119 [inline]
RIP: 0010:sk_diag_fill+0x77d/0x890 net/unix/diag.c:170
Code: 89 ef e8 66 d4 2d fd c7 44 24 40 00 00 00 00 49 8d 7c 24 18 e8
54 d7 2d fd 49 8b 5c 24 18 48 8d bb 70 02 00 00 e8 43 d7 2d fd <48> 8b
9b 70 02 00 00 48 8d 7b 10 e8 33 d7 2d fd 48 8b 5b 10 48 8d
RSP: 0018:ffffc90000d67968 EFLAGS: 00010246
RAX: ffff88812badaa48 RBX: 0000000000000000 RCX: ffffffff840d481d
RDX: 0000000000000465 RSI: 0000000000000000 RDI: 0000000000000270
RBP: ffffc90000d679a8 R08: 0000000000000277 R09: 0000000000000000
R10: 0001ffffffffffff R11: 0001c90000d679a8 R12: ffff88812ac03800
R13: ffff88812c87c400 R14: ffff88812ae42210 R15: ffff888103026940
FS: 00007f08b4e6f700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000270 CR3: 000000012c58b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
unix_diag_get_exact net/unix/diag.c:285 [inline]
unix_diag_handler_dump+0x3f9/0x500 net/unix/diag.c:317
__sock_diag_cmd net/core/sock_diag.c:235 [inline]
sock_diag_rcv_msg+0x237/0x250 net/core/sock_diag.c:266
netlink_rcv_skb+0x13e/0x250 net/netlink/af_netlink.c:2564
sock_diag_rcv+0x24/0x40 net/core/sock_diag.c:277
netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]
netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1356
netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1932
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0x38f/0x500 net/socket.c:2476
___sys_sendmsg net/socket.c:2530 [inline]
__sys_sendmsg+0x197/0x230 net/socket.c:2559
__do_sys_sendmsg net/socket.c:2568 [inline]
__se_sys_sendmsg net/socket.c:2566 [inline]
__x64_sys_sendmsg+0x42/0x50 net/socket.c:2566
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x4697f9
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48
89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d
01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f08b4e6ec48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000077bf80 RCX: 00000000004697f9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00000000004d29e9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000077bf80
R13: 0000000000000000 R14: 000000000077bf80 R15: 00007ffdb36bc6c0
</TASK>
Modules linked in:
CR2: 0000000000000270
[1]: https://lore.kernel.org/netdev/CAO4mrfdvyjFpokhNsiwZiP-wpdSD0AStcJwfKcKQdAALQ9_2Qw@mail.gmail.com/
[2]: https://lore.kernel.org/netdev/e04315e7c90d9a75613f3993c2baf2d344eef7eb.camel@redhat.com/
Fixes: cae9910e7344 ("net: Add UNIX_DIAG_UID to Netlink UNIX socket diagnostics.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Wei Chen <harperchen1110@gmail.com>
Diagnosed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
---
net/unix/diag.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 105f522a89fe..616b55c5b890 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -114,14 +114,16 @@ static int sk_diag_show_rqlen(struct sock *sk, struct sk_buff *nlskb)
return nla_put(nlskb, UNIX_DIAG_RQLEN, sizeof(rql), &rql);
}
-static int sk_diag_dump_uid(struct sock *sk, struct sk_buff *nlskb)
+static int sk_diag_dump_uid(struct sock *sk, struct sk_buff *nlskb,
+ struct user_namespace *user_ns)
{
- uid_t uid = from_kuid_munged(sk_user_ns(nlskb->sk), sock_i_uid(sk));
+ uid_t uid = from_kuid_munged(user_ns, sock_i_uid(sk));
return nla_put(nlskb, UNIX_DIAG_UID, sizeof(uid_t), &uid);
}
static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_req *req,
- u32 portid, u32 seq, u32 flags, int sk_ino)
+ struct user_namespace *user_ns,
+ u32 portid, u32 seq, u32 flags, int sk_ino)
{
struct nlmsghdr *nlh;
struct unix_diag_msg *rep;
@@ -167,7 +169,7 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r
goto out_nlmsg_trim;
if ((req->udiag_show & UDIAG_SHOW_UID) &&
- sk_diag_dump_uid(sk, skb))
+ sk_diag_dump_uid(sk, skb, user_ns))
goto out_nlmsg_trim;
nlmsg_end(skb, nlh);
@@ -179,7 +181,8 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r
}
static int sk_diag_dump(struct sock *sk, struct sk_buff *skb, struct unix_diag_req *req,
- u32 portid, u32 seq, u32 flags)
+ struct user_namespace *user_ns,
+ u32 portid, u32 seq, u32 flags)
{
int sk_ino;
@@ -190,7 +193,7 @@ static int sk_diag_dump(struct sock *sk, struct sk_buff *skb, struct unix_diag_r
if (!sk_ino)
return 0;
- return sk_diag_fill(sk, skb, req, portid, seq, flags, sk_ino);
+ return sk_diag_fill(sk, skb, req, user_ns, portid, seq, flags, sk_ino);
}
static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
@@ -214,7 +217,7 @@ static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
goto next;
if (!(req->udiag_states & (1 << sk->sk_state)))
goto next;
- if (sk_diag_dump(sk, skb, req,
+ if (sk_diag_dump(sk, skb, req, sk_user_ns(skb->sk),
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
NLM_F_MULTI) < 0) {
@@ -282,7 +285,8 @@ static int unix_diag_get_exact(struct sk_buff *in_skb,
if (!rep)
goto out;
- err = sk_diag_fill(sk, rep, req, NETLINK_CB(in_skb).portid,
+ err = sk_diag_fill(sk, rep, req, sk_user_ns(NETLINK_CB(in_skb).sk),
+ NETLINK_CB(in_skb).portid,
nlh->nlmsg_seq, 0, req->udiag_ino);
if (err < 0) {
nlmsg_free(rep);
--
2.30.2
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v2 net 2/2] af_unix: Add test for sock_diag and UDIAG_SHOW_UID.
2022-11-27 1:24 [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 1/2] af_unix: Get user_ns from in_skb in unix_diag_get_exact() Kuniyuki Iwashima
@ 2022-11-27 1:24 ` Kuniyuki Iwashima
2022-12-01 9:50 ` [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Kuniyuki Iwashima @ 2022-11-27 1:24 UTC (permalink / raw)
To: David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: Felipe Gasper, Wei Chen, Kuniyuki Iwashima, Kuniyuki Iwashima, netdev
The test prog dumps a single AF_UNIX socket's UID with and without
unshare(CLONE_NEWUSER) and checks if it matches the result of getuid().
Without the preceding patch, the test prog is killed by a NULL deref
in sk_diag_dump_uid().
# ./diag_uid
TAP version 13
1..2
# Starting 2 tests from 3 test cases.
# RUN diag_uid.uid.1 ...
BUG: kernel NULL pointer dereference, address: 0000000000000270
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 105212067 P4D 105212067 PUD 1051fe067 PMD 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-1.amzn2022.0.1 04/01/2014
RIP: 0010:sk_diag_fill (./include/net/sock.h:920 net/unix/diag.c:119 net/unix/diag.c:170)
...
# 1: Test terminated unexpectedly by signal 9
# FAIL diag_uid.uid.1
not ok 1 diag_uid.uid.1
# RUN diag_uid.uid_unshare.1 ...
# 1: Test terminated by timeout
# FAIL diag_uid.uid_unshare.1
not ok 2 diag_uid.uid_unshare.1
# FAILED: 0 / 2 tests passed.
# Totals: pass:0 fail:2 xfail:0 xpass:0 skip:0 error:0
With the patch, the test succeeds.
# ./diag_uid
TAP version 13
1..2
# Starting 2 tests from 3 test cases.
# RUN diag_uid.uid.1 ...
# OK diag_uid.uid.1
ok 1 diag_uid.uid.1
# RUN diag_uid.uid_unshare.1 ...
# OK diag_uid.uid_unshare.1
ok 2 diag_uid.uid_unshare.1
# PASSED: 2 / 2 tests passed.
# Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
---
tools/testing/selftests/net/.gitignore | 1 +
tools/testing/selftests/net/af_unix/Makefile | 2 +-
.../testing/selftests/net/af_unix/diag_uid.c | 178 ++++++++++++++++++
3 files changed, 180 insertions(+), 1 deletion(-)
create mode 100644 tools/testing/selftests/net/af_unix/diag_uid.c
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
index 3d7adee7a3e6..ff8fe93f679c 100644
--- a/tools/testing/selftests/net/.gitignore
+++ b/tools/testing/selftests/net/.gitignore
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
bind_bhash
cmsg_sender
+diag_uid
fin_ack_lat
gro
hwtstamp_config
diff --git a/tools/testing/selftests/net/af_unix/Makefile b/tools/testing/selftests/net/af_unix/Makefile
index 969620ae9928..1e4b397cece6 100644
--- a/tools/testing/selftests/net/af_unix/Makefile
+++ b/tools/testing/selftests/net/af_unix/Makefile
@@ -1,3 +1,3 @@
-TEST_GEN_PROGS := test_unix_oob unix_connect
+TEST_GEN_PROGS := diag_uid test_unix_oob unix_connect
include ../../lib.mk
diff --git a/tools/testing/selftests/net/af_unix/diag_uid.c b/tools/testing/selftests/net/af_unix/diag_uid.c
new file mode 100644
index 000000000000..5b88f7129fea
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/diag_uid.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <unistd.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/sock_diag.h>
+#include <linux/unix_diag.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+
+#include "../../kselftest_harness.h"
+
+FIXTURE(diag_uid)
+{
+ int netlink_fd;
+ int unix_fd;
+ __u32 inode;
+ __u64 cookie;
+};
+
+FIXTURE_VARIANT(diag_uid)
+{
+ int unshare;
+ int udiag_show;
+};
+
+FIXTURE_VARIANT_ADD(diag_uid, uid)
+{
+ .unshare = 0,
+ .udiag_show = UDIAG_SHOW_UID
+};
+
+FIXTURE_VARIANT_ADD(diag_uid, uid_unshare)
+{
+ .unshare = CLONE_NEWUSER,
+ .udiag_show = UDIAG_SHOW_UID
+};
+
+FIXTURE_SETUP(diag_uid)
+{
+ struct stat file_stat;
+ socklen_t optlen;
+ int ret;
+
+ if (variant->unshare)
+ ASSERT_EQ(unshare(variant->unshare), 0);
+
+ self->netlink_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
+ ASSERT_NE(self->netlink_fd, -1);
+
+ self->unix_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ ASSERT_NE(self->unix_fd, -1);
+
+ ret = fstat(self->unix_fd, &file_stat);
+ ASSERT_EQ(ret, 0);
+
+ self->inode = file_stat.st_ino;
+
+ optlen = sizeof(self->cookie);
+ ret = getsockopt(self->unix_fd, SOL_SOCKET, SO_COOKIE, &self->cookie, &optlen);
+ ASSERT_EQ(ret, 0);
+}
+
+FIXTURE_TEARDOWN(diag_uid)
+{
+ close(self->netlink_fd);
+ close(self->unix_fd);
+}
+
+int send_request(struct __test_metadata *_metadata,
+ FIXTURE_DATA(diag_uid) *self,
+ const FIXTURE_VARIANT(diag_uid) *variant)
+{
+ struct {
+ struct nlmsghdr nlh;
+ struct unix_diag_req udr;
+ } req = {
+ .nlh = {
+ .nlmsg_len = sizeof(req),
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_REQUEST
+ },
+ .udr = {
+ .sdiag_family = AF_UNIX,
+ .udiag_ino = self->inode,
+ .udiag_cookie = {
+ (__u32)self->cookie,
+ (__u32)(self->cookie >> 32)
+ },
+ .udiag_show = variant->udiag_show
+ }
+ };
+ struct sockaddr_nl nladdr = {
+ .nl_family = AF_NETLINK
+ };
+ struct iovec iov = {
+ .iov_base = &req,
+ .iov_len = sizeof(req)
+ };
+ struct msghdr msg = {
+ .msg_name = &nladdr,
+ .msg_namelen = sizeof(nladdr),
+ .msg_iov = &iov,
+ .msg_iovlen = 1
+ };
+
+ return sendmsg(self->netlink_fd, &msg, 0);
+}
+
+void render_response(struct __test_metadata *_metadata,
+ struct unix_diag_req *udr, __u32 len)
+{
+ unsigned int rta_len = len - NLMSG_LENGTH(sizeof(*udr));
+ struct rtattr *attr;
+ uid_t uid;
+
+ ASSERT_GT(len, sizeof(*udr));
+ ASSERT_EQ(udr->sdiag_family, AF_UNIX);
+
+ attr = (struct rtattr *)(udr + 1);
+ ASSERT_NE(RTA_OK(attr, rta_len), 0);
+ ASSERT_EQ(attr->rta_type, UNIX_DIAG_UID);
+
+ uid = *(uid_t *)RTA_DATA(attr);
+ ASSERT_EQ(uid, getuid());
+}
+
+void receive_response(struct __test_metadata *_metadata,
+ FIXTURE_DATA(diag_uid) *self)
+{
+ long buf[8192 / sizeof(long)];
+ struct sockaddr_nl nladdr = {
+ .nl_family = AF_NETLINK
+ };
+ struct iovec iov = {
+ .iov_base = buf,
+ .iov_len = sizeof(buf)
+ };
+ struct msghdr msg = {
+ .msg_name = &nladdr,
+ .msg_namelen = sizeof(nladdr),
+ .msg_iov = &iov,
+ .msg_iovlen = 1
+ };
+ struct unix_diag_req *udr;
+ struct nlmsghdr *nlh;
+ int ret;
+
+ ret = recvmsg(self->netlink_fd, &msg, 0);
+ ASSERT_GT(ret, 0);
+
+ nlh = (struct nlmsghdr *)buf;
+ ASSERT_NE(NLMSG_OK(nlh, ret), 0);
+ ASSERT_EQ(nlh->nlmsg_type, SOCK_DIAG_BY_FAMILY);
+
+ render_response(_metadata, NLMSG_DATA(nlh), nlh->nlmsg_len);
+
+ nlh = NLMSG_NEXT(nlh, ret);
+ ASSERT_EQ(NLMSG_OK(nlh, ret), 0);
+}
+
+TEST_F(diag_uid, 1)
+{
+ int ret;
+
+ ret = send_request(_metadata, self, variant);
+ ASSERT_GT(ret, 0);
+
+ receive_response(_metadata, self);
+}
+
+TEST_HARNESS_MAIN
--
2.30.2
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid().
2022-11-27 1:24 [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 1/2] af_unix: Get user_ns from in_skb in unix_diag_get_exact() Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 2/2] af_unix: Add test for sock_diag and UDIAG_SHOW_UID Kuniyuki Iwashima
@ 2022-12-01 9:50 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: patchwork-bot+netdevbpf @ 2022-12-01 9:50 UTC (permalink / raw)
To: Kuniyuki Iwashima
Cc: davem, edumazet, kuba, pabeni, felipe, harperchen1110, kuni1840, netdev
Hello:
This series was applied to netdev/net.git (master)
by Paolo Abeni <pabeni@redhat.com>:
On Sun, 27 Nov 2022 10:24:10 +0900 you wrote:
> The first patch fixes a NULL deref when we dump a AF_UNIX socket's UID,
> and the second patch adds a repro/test for such a case.
>
>
> Changes:
> v2:
> * Get user_ns from NETLINK_CB(in_skb).sk.
> * Add test.
>
> [...]
Here is the summary with links:
- [v2,net,1/2] af_unix: Get user_ns from in_skb in unix_diag_get_exact().
https://git.kernel.org/netdev/net/c/b3abe42e9490
- [v2,net,2/2] af_unix: Add test for sock_diag and UDIAG_SHOW_UID.
https://git.kernel.org/netdev/net/c/ac011361bd4f
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-12-01 9:50 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-11-27 1:24 [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 1/2] af_unix: Get user_ns from in_skb in unix_diag_get_exact() Kuniyuki Iwashima
2022-11-27 1:24 ` [PATCH v2 net 2/2] af_unix: Add test for sock_diag and UDIAG_SHOW_UID Kuniyuki Iwashima
2022-12-01 9:50 ` [PATCH v2 net 0/2] af_unix: Fix a NULL deref in sk_diag_dump_uid() patchwork-bot+netdevbpf
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.